Gasoline Shelf Life

courtesy of Bob, The Auto Answer Man

I understand that stored gasoline looses its octane rating over time. Will purchasing a higher-octane gasoline for storage increase the shelf life of the gasoline? If so, for how long? Since I'm not really storing gas for a long time, I don't intend to add a gas stabilizer.

Hi Henry,
It's not so much that it will lose octane rating. Instead, it will varnish, gum, and/or oxidize over time. I can tell you an old biker trick that we use when putting our rides to sleep for the winter. Simply add a double dose of STP fuel treatment (red bottle). I have been doing that for about 15 years in all my motorcycles and never have a problem in the spring when it comes time to start them up.
Good Luck!
Drive Safely!
Bob, The Auto Answer Man

Have a car care question? Visit our automotive maintenance section and see if we've already answered it or a similar question.

Stay Connected with TDS

Little Luxuries

to the Dollar Stretcher newsletter and get a copy
of our ebook
Little Luxuries:
130 Ways to Live Better...For Less
for FREE!

Your Email:

View the TDS Privacy Policy.

Get Out of Debt